问题

This kind of gel pen which ______ smoothly is quitepopular with students.

A:is written
B:is writing
C:wrote
D:writes

正确答案是：

同类题型

We must act now because time is __________.— Yes. Let’s start.

下列各句中，没有语病的一句是（）

下列各句中，没有语病的一句是（）

There are two rooms on the first floor, is used as a guest room.

A terrible example of earthquake which happened in Wenchuan, Sichuan ________ thousands of millions of people die.